Home / 513,039,659.22-707,975,761.95-278,085,275.01

Finding the Fourth Proportional to 513,039,659.22, 707,975,761.95 and 278,085,275.01

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Solution

The fourth proportional to 513,039,659.22, 707,975,761.95 and 278,085,275.01 is: 383,747,398.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,039,659.22 : 707,975,761.95 = 278,085,275.01 : x
  2. Step 2: Convert to fraction form
    513,039,659.22/707,975,761.95 = 278,085,275.01/x
  3. Step 3: Cross multiply
    513,039,659.22x = 707,975,761.95 × 278,085,275.01
  4. Step 4: Simplify right side
    513,039,659.22x = 196,877,634,462,280,064
  5. Step 5: Solve for x
    x = 196,877,634,462,280,064/513,039,659.22
  6. Step 6: Final answer
    x = 383,747,398.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.